LIGHT SOURCE, LIGHT SOURCE DEVICE, LIGHT SOURCE DRIVING METHOD, RAMAN AMPLIFIER, AND RAMAN AMPLIFICATION SYSTEM

To provide a light source, a light source device, a light source driving method, a Raman amplifier, and a Raman amplification system using the same, in which RIN and ripple are suppressed at the same time.SOLUTION: A light source includes a seed light source that outputs incoherent seed light having...

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Hauptverfasser:	OGOSHI HARUKI, YOSHIDA JUNJI, FUNAHASHI MASAKI, SUGIZAKI RYUICHI, NITIDET THUDSALINGKARNSAKUL, INABA YUSUKE, KIMOTO TATSUYA, ICHINO SEIJI, HOJO NAOYA, KOSAKA SHIGEHIRO, SANGUAN ANANTATHANASARN
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DEVICES USING STIMULATED EMISSION ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	To provide a light source, a light source device, a light source driving method, a Raman amplifier, and a Raman amplification system using the same, in which RIN and ripple are suppressed at the same time.SOLUTION: A light source includes a seed light source that outputs incoherent seed light having a predetermined band, and a booster amplifier which is a semiconductor optical amplifier that optically amplifies the seed light input from the first facet and outputs the amplified light from the second facet, and in the booster amplifier, nL which is the product of the refractive index n and the tip length L is set such that the relative intensity noise (RIN) and ripple are simultaneously suppressed in the amplified light.SELECTED DRAWING: Figure 1 【課題】ＲＩＮとリップルとが同時に抑制される光源、光源装置、光源の駆動方法、ならびにこれを用いたラマン増幅器およびラマン増幅システムを提供すること。【解決手段】光源は、所定の帯域を有するインコヒーレントなシード光を出力するシード光源と、第１端面から入力された前記シード光を光増幅し、増幅光として第２端面から出力する半導体光増幅器であるブースター増幅器と、を備え、前記ブースター増幅器は、前記増幅光において相対強度雑音（ＲＩＮ）およびリップルが同時に抑制されるように、屈折率ｎとチップ長Ｌとの積であるｎＬが設定されている。【選択図】図１